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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21d.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34T/4A63U5S
Repositóriosid.inpe.br/mtc-m21d/2023/11.03.17.19   (acesso restrito)
Última Atualização2023:11.03.17.19.07 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21d/2023/11.03.17.19.07
Última Atualização dos Metadados2024:01.02.17.16.52 (UTC) administrator
DOI10.1016/j.jsames.2023.104642
ISSN0895-9811
Chave de CitaçãoLeonardoCasaJust:2023:SoOcRe
TítuloSouthern ocean response to glacial and interglacial forcing
Ano2023
MêsNov.
Data de Acesso09 maio 2025
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho22064 KiB
2. Contextualização
Autor1 Leonardo, Noele Frachi
2 Casagrande, Fernanda
3 Justino, Flávio Barbosa
Grupo1
2 DIMNT-CGCT-INPE-MCTI-GOV-BR
Afiliação1 Universidade de São Paulo (USP)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Universidade Federal de Viçosa (UFV)
Endereço de e-Mail do Autor1 noelef.leonardo@gmail.com
2 fe.casagrande2@gmail.com
3 fjustino@ufv.br
RevistaJournal of South American Earth Sciences
Volume131
Páginase104642
Nota SecundáriaA1_INTERDISCIPLINAR A1_GEOGRAFIA A2_GEOCIÊNCIAS A2_ENGENHARIAS_III A2_CIÊNCIAS_AGRÁRIAS_I B1_ODONTOLOGIA B1_MEDICINA_II B1_CIÊNCIAS_AMBIENTAIS B1_BIODIVERSIDADE B1_ANTROPOLOGIA_/_ARQUEOLOGIA B2_QUÍMICA B2_MATERIAIS B2_CIÊNCIAS_BIOLÓGICAS_I B3_ASTRONOMIA_/_FÍSICA C_ENGENHARIAS_II
Histórico (UTC)2023-11-03 17:19:07 :: simone -> administrator ::
2023-11-03 17:19:09 :: administrator -> simone :: 2023
2023-11-03 17:19:36 :: simone -> administrator :: 2023
2024-01-02 17:16:52 :: administrator -> simone :: 2023
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChaveLGM
MIS11c
Paleoclimate
UVic ESCM
ResumoThe Southern Ocean is particularly vulnerable to climate change. Atmospheric CO2 fluctuations have been highly correlated with climate on million years time scales or caused or at least amplified, the climatic change. Here we used two simulations with the UVic ESCM 2.9 model for the Last Glacial Maximum (LGM) and Marine Isotope Stage 11c (MIS11c) climate using orbital forcing and CO2 prescribed for the ages. We have clearly identified the differences between the decrease and increase inf CO2 concentration in the Southern Ocean. The LGM simulation produces a colder, saltier, and more alkaline Southern Ocean than MIS11c. The MIS11c simulations show a reduction in O2 content with respect to LGM, which may be related to less primary productivity and more CaCO3 dissolution. According to the MIS11c simulation, the surface ocean carbonate factory is expected to be more sensitive to carbon oscillations due to an increase in CO2 dissolved in sea water. As expected, it will decrease the pH due to decreased alkalinity and ion carbonate concentrations. In this scenario, the aragonite concentration in the deep sediments would be more vulnerable to dissolution as a response of shoaling of the depth of aragonite saturation. The increase in CO2 dissolved in sea water in MIS11c, decreases the pH and saturation depth of CaCO3 becomes more than 1000 m shallower than found in the LGM simulation. This implies in a negative feedback of CO2 absorption with the saturation horizon becoming shallower, less Southern Ocean capacity has to uptake atmospheric CO2. Since the CaCO3 formation in the surface ocean and the dissolution in the deeper both affect TCO2 and TA as also the pCO2. Our results indicated that, under high CO2 conditions, the surface of the Southern Ocean appears to be more sensitive to a carbon perturbation, generally due to a decrease in ion carbonate concentration that leads to changes in the carbonate buffer system that will result in a deepening more than 1000 m the aragonite depth saturation in relation to MIS11c results.
ÁreaMET
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4. Condições de acesso e uso
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Arquivo Alvo1-s2.0-S0895981123004546-main.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
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Visibilidadeshown
Política de Arquivamentodenypublisher denyfinaldraft24
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/46KUATE
Lista de Itens Citandosid.inpe.br/bibdigital/2022/04.03.22.23 6
DivulgaçãoWEBSCI; PORTALCAPES; COMPENDEX; SCOPUS.
Acervo Hospedeirourlib.net/www/2021/06.04.03.40
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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